okay so my new bike came with this aftermarket exhaust on it. it says JMCA i know thats no the brand so here are some pics, maybe someone has seen this before? its a carbon kevlar sleeved exhaust.

Looks like a TSR to me - the little plat where the springs attach gives it away. very similar to Yamamoto and I'd guess that sleeve has been rebuilt as the end caps look very new!

ahh okay. so is tsr a good exhaust make then?